Loader



LOADER Takashi Yagi, Sukegawamachi, Hitachi, Japan, assignor to Nobuyoshi Kawataki, Tokyo, Japan Application February 5, 1958, Serial No. 713,404

Claims priority, application Japan February 15, 1957 1 Claim. (Cl. 214512) This invention relates to a loader for loading articles, especially cylindrical articles such as drums, barrels, paper rolls, etc. onto a truck, a freight car or the like.

The main object of this invention is to obtain a loader capable of lifting articles to be loaded to a comparatively high portion of a truck or the like.

For this object the loader due to this invention comprises in combination a machine frame, a fork member having at its front end a loading part and secured swingably to the frame, a reciprocating mechanism for swinging said member up and down, and a passage frame for articles to be loaded mounted onto the frame so as to move vertically.

According to this invention the vertical movement of the passage frame can be effected through a pair of pantographs by the reciprocating mechanism in association with the swinging-up-and-down of the fork member. In this case the lift of the passage frame is eifected when the fork member swings down, and vice versa.

In the accompanying drawing,

Fig. 1 shows a schematical side elevation of one embodiment of the loader of this invention and Fig. 2 is a schematical plan view of the same.

In the drawing 1 denotes the machine frame of the loader consisting mainly of a foundation frame 3 with wheels 2, a support frame 4 and a carrying frame 5 fixed to the frame 4. To the pin 6 as fulcrum arranged at the top of the frame 4 is pivoted the upper part of a fork member 7 which has at its front end a loading part 8. The front end of a crank 9 of a reciprocating mechanism to be driven by a suitable power source, such as a prime mover mounted on the frame, a power take-off of a truck or the like, is pivoted to one end of a push rod 10 whose other end is pressed against the fork member to swing the latter up and down.

Above the carrying frame 5 there is arranged a passage frame 14 connected with the frame 5 through a pair of crossing levers 11, 12 which are pivoted by pins 15 and 16 at their one ends to the frames 5 and 14, respectively. The other ends of the levers 11 and 12 are connected with the frames 5 and 14, respectively, to be guided Iec- United States Patent 0 2,913,133 Patented Nov. 17, 1959 tilinearly on and along these frames. The extension 17 of the fork member 7 beyond the pin 6 is connected pivotally with the levers 11 through connecting levers 18.

In case of using the loader mentioned above, the crank reciprocating mechanism is actuated to swing the fork member 7, from the position shown by full lines down into a position shown by chain lines. In this case the pantographs 13 are stretched to lift the passage frame 14 into the uppermost position also shown by chain lines. When the fork member 7 with articles loaded onto its loading part 8 is swung then counter-clockwise, the passage frame 14 descends gradually till it reaches the lowermost position shown by full lines in the drawing, when the fork member reaches also the position shown by full lines in the drawing. The articles are moved then from the member 7 onto the passage frame 14, whereafter the fork member 7 is swung down again, whereby the pantographs 13 are stretched to lift the frame 14 toits uppermost position. Thus, the articles loaded on the passage frame 14 can be lifted at a desired height and removed therefrom to a desired place on, for example, a truck.

According to this invention any cylindrical articles can be loaded conveniently onto a comparatively high place and power for swinging the fork member downwardly which has been consumed only for this purpose can be utilized simultaneously and economically for lifting the passage frame.

From the foregoing it will be seen that many modifications of the specific disclosed form of the invention may be resorted to, and it is to be understood that the scope of the invention is to be ascertained solely by the appended claim.

I claim:

A mechanically operated loader comprising in combination a machine framework, a fork member having at its front end a loading part and secured swingably to the frame, a reciprocating mechanism mounted on said framework for swinging said member up and down, a passage frame for articles to be loaded mounted on said framework so as to move vertically, and a pair of pantographs interposed between said framework and said passage frame, a connecting lever mechanically connected with said fork member and said pantographs moving said passage frame in forced association with movement of the fork member in such a manner that the passage frame is lifted into its uppermost position above said frame when the fork member is in its lowermost position, and vice versa.

References Cited in the file of this patent UNITED STATES PATENTS 

